Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853207 | Process for the manufacture of vitreous metal oxides | Henri Wautier, Franz Legrand | 1989-08-01 |
| 4830993 | Process for the manufacture of a metal oxide powder for ceramic materials and zirconia powder produced by this process | Franz Legrand, Patricia Van den Bossche-De Bruycker | 1989-05-16 |